AMD Ryzen 9 3900 vs Intel Core i7-11700K

Compare AMD Ryzen 9 Desktop 12 core CPU vs Intel 11th Generation Core i7 8 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

Quickly search and compare processors

Benchmark Score

Overall Score

A combined score of all workloads

124 %
31% slightly better overall score
94 %

Gaming Score

The raw gaming performance with a fast GPU

94 %
103 %
9% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

135 %
48% significantly better multitasking score
91 %

Heavy Workload Score

Performance in workloads using up to 16 cores

142 %
59% significantly better heavy workload score
89 %

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 3900 and the Core i7-11700K? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Multi threaded benchmark

10% slightly higher Geekbench (multi) score

Geekbench (single) score

Single threaded benchmark

37% slightly higher Geekbench (single) score

3DMark Physics score

Physics simulation benchmark

8% slightly higher 3DMark Physics score



Number of physical processing units

49% significantly more cores


Number of logical processing units

49% significantly more threads

Clock Speed

Base frequency at which the chip operates

3 GHz
4 GHz
16% slightly higher clock speed


Thermal Design Power: Measure of heat generated by the CPU

65 W
92% significantly lower TDP
125 W

Memory Channels

Lanes for simultaneous memory access


L1 Cache

Smallest embedded memory, but the fastest

768 KiB
20% slightly more L1 cache
640 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
49% significantly more L2 cache
4 MiB

L3 Cache

General memory pool for all cores

64 MiB
300% significantly more L3 cache
16 MiB

Other details


Ranking in the hardwareDB database

16th of 1,327
66th of 1,327


The product line

Ryzen 9 Desktop
11th Generation Core i7

Release date

The official date of release of this chip

September 2019
February 2021

Memory Type

The type of memory used by this chip


Is Unlocked

Can this CPU can be overclocked


Supports ECC memory

Does this CPU support error correcting memory


Ryzen 9 3900 vs Core i7-11700K specs and performance

According to the hardwareDB Benchmark tool, the Ryzen 9 3900 is faster than the Core i7-11700K. Despite this, the Core i7-11700K has the advantage in our gaming benchmark.

In terms of the number of cores of each of these CPUs, the Ryzen 9 3900 has significantly more cores than the Core i7-11700K. Indeed, the Ryzen 9 3900 has 12 cores compared to 8 cores found in the Core i7-11700K. It also has more threads than the Core i7-11700K. With our hardware info, we find that the Core i7-11700K has a slightly higher clock speed than the Ryzen 9 3900. A Ryzen 9 3900 CPU outputs less heat than a Core i7-11700K CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The cache sizes of these CPUs are different. Indeed, the Ryzen 9 3900 has significantly more L2 cache than the Core i7-11700K. The Ryzen 9 3900 also has significantly more L3 cache.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. Indeed, the Ryzen 9 3900 has more threads than cores. Each physical core is split into multiple threads.


No comments yet! Be the first to leave a comment using the form below.

Keep comments on topic and be polite. Comments are subject to moderation before they are published.

Popular CPU Comparisons